<?php

/**
 * Add body classes if certain regions have content.
 */
function bartik_preprocess_html(&$variables) {
    if (!empty($variables['page']['featured'])) {
        $variables['classes_array'][] = 'featured';
    }

    if (!empty($variables['page']['triptych_first'])
            || !empty($variables['page']['triptych_middle'])
            || !empty($variables['page']['triptych_last'])) {
        $variables['classes_array'][] = 'triptych';
    }

    if (!empty($variables['page']['footer_firstcolumn'])
            || !empty($variables['page']['footer_secondcolumn'])
            || !empty($variables['page']['footer_thirdcolumn'])
            || !empty($variables['page']['footer_fourthcolumn'])) {
        $variables['classes_array'][] = 'footer-columns';
    }

    // Add conditional stylesheets for IE
    drupal_add_css(path_to_theme() . '/css/ie.css', array('group' => CSS_THEME, 'browsers' => array('IE' => 'lte IE 7', '!IE' => FALSE), 'preprocess' => FALSE));
    drupal_add_css(path_to_theme() . '/css/ie6.css', array('group' => CSS_THEME, 'browsers' => array('IE' => 'IE 6', '!IE' => FALSE), 'preprocess' => FALSE));
}

/**
 * Override or insert variables into the page template for HTML output.
 */
function bartik_process_html(&$variables) {
    // Hook into color.module.
    if (module_exists('color')) {
        _color_html_alter($variables);
    }
}

/**
 * Override or insert variables into the page template.
 */
function bartik_process_page(&$variables) {
    // Hook into color.module.
    if (module_exists('color')) {
        _color_page_alter($variables);
    }
    // Always print the site name and slogan, but if they are toggled off, we'll
    // just hide them visually.
    $variables['hide_site_name'] = theme_get_setting('toggle_name') ? FALSE : TRUE;
    $variables['hide_site_slogan'] = theme_get_setting('toggle_slogan') ? FALSE : TRUE;
    if ($variables['hide_site_name']) {
        // If toggle_name is FALSE, the site_name will be empty, so we rebuild it.
        $variables['site_name'] = filter_xss_admin(variable_get('site_name', 'Drupal'));
    }
    if ($variables['hide_site_slogan']) {
        // If toggle_site_slogan is FALSE, the site_slogan will be empty, so we rebuild it.
        $variables['site_slogan'] = filter_xss_admin(variable_get('site_slogan', ''));
    }
    // Since the title and the shortcut link are both block level elements,
    // positioning them next to each other is much simpler with a wrapper div.
    if (!empty($variables['title_suffix']['add_or_remove_shortcut']) && $variables['title']) {
        // Add a wrapper div using the title_prefix and title_suffix render elements.
        $variables['title_prefix']['shortcut_wrapper'] = array(
            '#markup' => '<div class="shortcut-wrapper clearfix">',
            '#weight' => 100,
        );
        $variables['title_suffix']['shortcut_wrapper'] = array(
            '#markup' => '</div>',
            '#weight' => -99,
        );
        // Make sure the shortcut link is the first item in title_suffix.
        $variables['title_suffix']['add_or_remove_shortcut']['#weight'] = -100;
    }
}

/**
 * Implements hook_preprocess_maintenance_page().
 */
function bartik_preprocess_maintenance_page(&$variables) {
    if (!$variables['db_is_active']) {
        unset($variables['site_name']);
    }
    drupal_add_css(drupal_get_path('theme', 'bartik') . '/css/maintenance-page.css');
}

/**
 * Override or insert variables into the maintenance page template.
 */
function bartik_process_maintenance_page(&$variables) {
    // Always print the site name and slogan, but if they are toggled off, we'll
    // just hide them visually.
    $variables['hide_site_name'] = theme_get_setting('toggle_name') ? FALSE : TRUE;
    $variables['hide_site_slogan'] = theme_get_setting('toggle_slogan') ? FALSE : TRUE;
    if ($variables['hide_site_name']) {
        // If toggle_name is FALSE, the site_name will be empty, so we rebuild it.
        $variables['site_name'] = filter_xss_admin(variable_get('site_name', 'Drupal'));
    }
    if ($variables['hide_site_slogan']) {
        // If toggle_site_slogan is FALSE, the site_slogan will be empty, so we rebuild it.
        $variables['site_slogan'] = filter_xss_admin(variable_get('site_slogan', ''));
    }
}

/**
 * Override or insert variables into the node template.
 */
function bartik_preprocess_node(&$variables) {
    if ($variables['view_mode'] == 'full' && node_is_page($variables['node'])) {
        $variables['classes_array'][] = 'node-full';
    }
    if ($variables['node']->type == 'book' && !$variables['is_front'] && $variables['node']->field_video) {
        $video_width = $variables['node']->field_video_width['und'][0]['value'];
        $player_height = $variables['node']->field_video_height['und'][0]['value'] + 24;
        $video_path_full = str_replace('public://', base_path() . 'sites/default/files/', $variables['node']->field_video['und'][0]['uri']);

        $variables['video']['full_path'] = $video_path_full;
        $variables['video']['width'] = $video_width;
        $variables['video']['height'] = $player_height;
    }
}

/**
 * Override or insert variables into the block template.
 */
function bartik_preprocess_block(&$variables) {
    // In the header region visually hide block titles.
    if ($variables['block']->region == 'header') {
        $variables['title_attributes_array']['class'][] = 'element-invisible';
    }
}

/**
 * Implements theme_menu_tree().
 */
function bartik_menu_tree($variables) {
    return '<ul class="menu clearfix">' . $variables['tree'] . '</ul>';
}

/**
 * Implements theme_field__field_type().
 */
function bartik_field__taxonomy_term_reference($variables) {
    $output = '';

    // Render the label, if it's not hidden.
    if (!$variables['label_hidden']) {
        $output .= '<h3 class="field-label">' . $variables['label'] . ': </h3>';
    }

    // Render the items.
    $output .= ($variables['element']['#label_display'] == 'inline') ? '<ul class="links inline">' : '<ul class="links">';
    foreach ($variables['items'] as $delta => $item) {
        $output .= '<li class="taxonomy-term-reference-' . $delta . '"' . $variables['item_attributes'][$delta] . '>' . drupal_render($item) . '</li>';
    }
    $output .= '</ul>';

    // Render the top-level DIV.
    $output = '<div class="' . $variables['classes'] . (!in_array('clearfix', $variables['classes_array']) ? ' clearfix' : '') . '">' . $output . '</div>';

    return $output;
}
